In the past decade, many near-threshold charmonium-like states called \(XYZ\)  particles were observed, triggering lots of studies on the molecule-like bound states containing heavy quark hadrons. Such studies will give further information on the hadron-hadron interactions. In the heavy-quark sector, the large masses of the heavy quarks reduce the kinetic energy of the system, which makes them easier to form bound states. Therefore, extending the dibaryon research to the heavy quark sector is spontaneous.
The \(N\Lambda _{c}\)  system and the \(H\) -like dibaryon state \(\Lambda _{c}\Lambda _{c}\)  have been studied on both hadron level [1]}, [2]} and quark level [3]}, [4]}. The possibility of existing deuteron-like dibaryons with heavy quarks, such as
\(N\Sigma _{c}\) , \(N\Xi ^{^{\prime }}_{c}\) , \(N\Xi _{cc}\) , \(\Xi \Xi _{cc}\)  and so on, were investigated by several realistic phenomenological
nucleon-nucleon interaction models [5]}, [6]}. In Ref. [7]}, the deuteron-like states composed of two doubly charmed baryons \(\Xi _{cc}\Xi _{cc}\)  and \(\Xi _{cc}\overline{\Xi }_{cc}\)  were systematically studied within the one-boson-exchange model. Besides, the possible \(N\Omega \) -like dibaryons \(N\Omega _{ccc}\)  and \(N\Omega _{bbb}\)  were investigated within both the chiral quark model and quark delocalization color screening model [8]}.
Recently, Junnarkar and Mathur reported the first lattice QCD study of deuteron-like dibaryons with heavy quark flavors [9]}, and suggested that the dibaryons \(\Omega _{c}\Omega _{cc} (sscscc)\) , \(\Omega _{b}\Omega _{bb} (ssbsbb)\) , and \(\Omega _{ccb}\Omega _{cbb} (ccbcbb)\)  were stable under strong and electromagnetic interactions. They also found that the binding of these dibaryons became stronger as they became heavier in mass. However, the distinct conclusion was claimed in the work of Ref. [10]}, where the authors explored the possibility of very heavy dibaryons with three charm quarks and three beauty quarks (\(bbbccc\) ) in potential models, and concluded that there was no evidence for any stable state in such very heavy flavored six-quark system. Additionally, the existence of fully heavy dibaryons were also investigated in the constituent quark model [11]}.
